EP 2857475 B1 20190626 - HEAVY RELEASE ADDITIVE FOR RELEASE SHEET, POLYORGANOSILOXANE COMPOSITION FOR RELEASE SHEET, AND RELEASE SHEET
Title (en)
HEAVY RELEASE ADDITIVE FOR RELEASE SHEET, POLYORGANOSILOXANE COMPOSITION FOR RELEASE SHEET, AND RELEASE SHEET
Title (de)
SCHWERES TRENNADDITIV FÜR TRENNFOLIE, POLYORGANOSILOXANZUSAMMENSETZUNG FÜR TRENNFOLIE UND TRENNFOLIE
Title (fr)
ADDITIF DE PELAGE LOURD POUR FEUILLE DE PELAGE, COMPOSITION DE POLYORGANOSILOXANE POUR FEUILLE DE PELAGE, ET FEUILLE DE PELAGE
Publication
Application
Priority
- JP 2012119418 A 20120525
- JP 2013063752 W 20130517
Abstract (en)
[origin: EP2857475A1] The present invention relates to a heavy release additive for a release sheet, which comprises a condensation reaction product produced by the dehydrative condensation reaction between (A) a polydiorganosiloxane that has an average polymerization degree of 500 to 10,000 and has at least one hydroxy or hydrolysable group per molecule and (B) a polyorganosiloxane resin that is mainly composed of a (SiO 4/2 ) unit and a (R 3 SiO 1/2 ) unit (wherein R's independently represent a C 1-12 monovalent hydrocarbon group or a C 2-6 alkenyl group each having no aliphatic unsaturated bond), has a ratio of the content of the (R 3 SiO 1/2 ) unit to the content of the (SiO 4/2 ) unit of 0.6 to 1.2 by mole, and contains the hydroxy group and the hydrolysable group in the total content of 2.1 mass% or more and less than 10.0 mass%. When the heavy release additive for a release sheet according to the present invention is added to a polyorganosiloxane composition for a release sheet, the heavy release additive can have the effect of achieving an extremely great peel force compared with cases in which no additive is added.
IPC 8 full level
C08G 77/44 (2006.01); C08L 83/05 (2006.01); C08L 83/07 (2006.01); C08L 83/10 (2006.01); C09K 3/00 (2006.01)
CPC (source: EP US)
C08G 77/44 (2013.01 - EP US); C08K 5/5419 (2013.01 - EP US); C08L 83/04 (2013.01 - EP US); C09D 183/04 (2013.01 - US); C09D 183/06 (2013.01 - US); C09D 183/10 (2013.01 - US); C08G 77/14 (2013.01 - EP US); C08G 77/16 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2857475 A1 20150408; EP 2857475 A4 20151125; EP 2857475 B1 20190626; CN 104364339 A 20150218; CN 104364339 B 20160608; JP 2013245279 A 20131209; JP 5891948 B2 20160323; KR 102068490 B1 20200121; KR 20150016323 A 20150211; TW 201408731 A 20140301; TW I567137 B 20170121; US 2015133594 A1 20150514; US 9403968 B2 20160802; WO 2013176044 A1 20131128
DOCDB simple family (application)
EP 13794464 A 20130517; CN 201380027287 A 20130517; JP 2012119418 A 20120525; JP 2013063752 W 20130517; KR 20147034882 A 20130517; TW 102118411 A 20130524; US 201314403324 A 20130517